Swing aid apparatus



FIG. 1 is a front elevation view of a swing aid apparatus in use by a user, showing the novel design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The phantom lines shown in the figures are for illustration purposes only and do not form parts of the claimed design. 

CLAIM The ornamental design for a swing aid apparatus, as shown and described. 